144 lines
4.8 KiB
C#
144 lines
4.8 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Web;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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namespace webmusic.Pages
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{
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public class IndexModel : PageModel
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{
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public static string root = "music";
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public string path = "";
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public string displaypath = "";
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public string path_oneup = "";
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public string fullpath = "";
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public List<string> dirs = new List<string>();
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public List<string> files = new List<string>();
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public void OnGet()
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{
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if (Request.QueryString.HasValue)
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path = HttpUtility.UrlDecode(Request.QueryString.Value.Remove(0,1)
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.Replace("+", "%2B"));
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if (path.EndsWith(".m3u"))
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path = path.Substring(0, path.Length - 4);
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if (path.Contains("/.."))
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{
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Response.Redirect("/Error");
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return;
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}
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path_oneup = Regex.Match(path, @".*(?=\/)").Value;
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fullpath = root + path;
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displaypath = string.IsNullOrWhiteSpace(path) ? "/" : path;
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dirs = Directory.GetDirectories(fullpath).Select(Path.GetFileName).ToList();
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dirs.RemoveAll(p => p.StartsWith("."));
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dirs.Sort();
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files = Directory.GetFiles(fullpath).Select(Path.GetFileName).ToList();
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files.RemoveAll(p => p.EndsWith(".m3u"));
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files.RemoveAll(p => p.StartsWith("."));
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files.Sort(new AlphanumComparatorFast());
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}
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public string Encode(string str)
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{
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return str.Replace("\"", "%22").Replace("'", "%27")
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.Replace("?", "%3F").Replace("&", "%26")
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.Replace(" ", "%20");
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}
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public class AlphanumComparatorFast : IComparer<string>
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{
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public int Compare(string x, string y)
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{
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string s1 = x;
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if (s1 == null)
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{
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return 0;
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}
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if (!(y is string s2))
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{
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return 0;
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}
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int len1 = s1.Length;
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int len2 = s2.Length;
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int marker1 = 0;
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int marker2 = 0;
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// Walk through two the strings with two markers.
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while (marker1 < len1 && marker2 < len2)
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{
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char ch1 = s1[marker1];
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char ch2 = s2[marker2];
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// Some buffers we can build up characters in for each chunk.
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char[] space1 = new char[len1];
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int loc1 = 0;
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char[] space2 = new char[len2];
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int loc2 = 0;
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// Walk through all following characters that are digits or
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// characters in BOTH strings starting at the appropriate marker.
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// Collect char arrays.
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do
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{
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space1[loc1++] = ch1;
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marker1++;
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if (marker1 < len1)
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{
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ch1 = s1[marker1];
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}
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else
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{
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break;
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}
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} while (char.IsDigit(ch1) == char.IsDigit(space1[0]));
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do
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{
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space2[loc2++] = ch2;
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marker2++;
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if (marker2 < len2)
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{
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ch2 = s2[marker2];
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}
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else
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{
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break;
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}
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} while (char.IsDigit(ch2) == char.IsDigit(space2[0]));
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// If we have collected numbers, compare them numerically.
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// Otherwise, if we have strings, compare them alphabetically.
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string str1 = new string(space1);
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string str2 = new string(space2);
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int result;
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if (char.IsDigit(space1[0]) && char.IsDigit(space2[0]))
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{
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int thisNumericChunk = int.Parse(str1);
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int thatNumericChunk = int.Parse(str2);
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result = thisNumericChunk.CompareTo(thatNumericChunk);
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}
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else
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{
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result = str1.CompareTo(str2);
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}
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if (result != 0)
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{
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return result;
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}
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}
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return len1 - len2;
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}
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}
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}
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} |